thumb| David Geringas (; born 29 July 1946 in Vilnius) is a Lithuanian cellist and conductor who studied under Mstislav Rostropovich. In 1970 he won the gold medal at the International Tchaikovsky Com
1. Compute SHA-256 of OTSCanonicalRecord value → must equal OTSHash 2. Open OTSProofURL → extract Bitcoin block number → must equal OTSBitcoinBlock 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Read CopyrightID inside OTSCanonicalRecord → must equal the CopyrightID above 5. GET OTSVerificationAPI → pre-computed 6-check result from server 6. If all match: this entity was registered on CopyrightChains at OTSTimestamp, independently verifiable on Bitcoin Note: an OTS proof may carry multiple Bitcoin attestations; OTSBitcoinBlock is the earliest confirmed one — a later attestation inside the proof corroborates it and is not a mismatch
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5eea10ba4a5e64a7f1c8e1afea6e9726e8708ee30bb9b8de13200f578a347e68. Chain 2 (Bitcoin): anchored in block 953407 (2026-06-12T19:24:56Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/94131f21-723b-4778-8ae2-9b6bdc100546.json and https://artists.proofprofile.net/proofs/artist/94131f21-723b-4778-8ae2-9b6bdc100546.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Capriccio, Op. 85, TrV 279: Du Spiegelbild der verliebten Madeleine - Live
1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp Note: an OTS proof may carry multiple Bitcoin attestations; OTSBitcoinBlock is the earliest confirmed one — a later attestation inside the proof corroborates it and is not a mismatch
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcbb0efbd2e43f4ccbfd015ef4b45beca57281903e3f40bf4e7bf87231bcf72b8. Chain 2 (Bitcoin): anchored in block 956889 (2026-07-06T06:56:49Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DEN962302906.
Bach for Breakfast - The Leisurely Way to Start Your Day
Herz und Mund und Tat und Leben, Cantata BWV 147: No. 10 Jesu, Joy of Man's Desiring (Arr. by Guillermo Figueroa)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbf44f17face4e4c33be02ca03fbe1b077c2872a698d04b8ed7b204dd84b6421b. Chain 2 (Bitcoin): anchored in block 953515 (2026-06-13T12:53:06Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DEF058902750.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x77e01b14b575922c06ff72d35249b24eeded67017b23555fa87e610995d5df57. Chain 2 (Bitcoin): anchored in block 953515 (2026-06-13T12:53:06Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/NLA506800158.
Oboe Concerto in D Minor, BWV 1059R: II. Siciliano
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9dc016a145e30b5dba010d1dea3a05a739b8c395de2607af89fb9246ed1e007c. Chain 2 (Bitcoin): anchored in block 953520 (2026-06-13T13:32:09Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/NLA508119405.
Suite for Cello Solo No. 3 in C, BWV 1009 - Guitar Transcription by Pepe Romero (1944-): 5. Bourrée I/II
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb638387f345f599a4280991b7af5dfa4f0ef99757ea932c98542962705dc1848. Chain 2 (Bitcoin): anchored in block 953520 (2026-06-13T13:32:09Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/NLA508101710.
Sonata No.2 in E flat major, BWV 1031 - For Flute and Harp: 2. Siciliano
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Sonata No.2 in E flat major, BWV 1031 - For Flute and Harp: 1. Allegro moderato
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfd3f1d14fe288dcfe19d6fa2f2153f68f18d6bedbf10f5f80fcaf792bcfd5de7. Chain 2 (Bitcoin): anchored in block 953520 (2026-06-13T13:32:09Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/NLA508702309.
Brandenburg Concerto No. 6 in B-Flat Major, BWV 1051: II. Adagio ma non tanto
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x81d73e5dc60d91ac670eaf17750525a34d38d469aab7369acbc10bd8909311d8. Chain 2 (Bitcoin): anchored in block 953520 (2026-06-13T13:32:09Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/NLA507921517.
Sonata for Violin or Flute and Continuo, No.1 in G Minor BWV 1020 - arr. Flute, Harp, and Cello: 1. (Allegro)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc57fa9be03354f64dd5e89c0292b34156020672ae8c87c130c0e559bdcc7280c. Chain 2 (Bitcoin): anchored in block 953515 (2026-06-13T12:53:06Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/NLA508702319.
Sonata for Violin or Flute and Continuo, No.1 in G Minor BWV 1020 - arr. Flute, Harp, and Cello: 2. Adagio
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc195b7ede2fb0e29ceeb2e07572cefd96418388e27fd3a108257f0099ddafe6c. Chain 2 (Bitcoin): anchored in block 953520 (2026-06-13T13:32:09Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/NLA508702320.
Christmas Oratorio, BWV 248 / Part Two - For the second Day of Christmas: No. 10 Sinfonia
Academy of St Martin in the Fields Chorus
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd480deaeab3383b4ad38934cdc9bc2e523cd0bc9ab8427ee96e4dd3aa7780bee. Chain 2 (Bitcoin): anchored in block 953520 (2026-06-13T13:32:09Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/NLA509315205.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x94df10132595206e89e883edfd56de36985bf3b658df84b3871a069c55adca07. Chain 2 (Bitcoin): anchored in block 953520 (2026-06-13T13:32:09Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/NLA506800458.
Sonata for Flute or Violin No.4 in C, BWV 1033: 1. Andante - Presto
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Sonata for Flute or Violin No.4 in C, BWV 1033: 4. Menuet I - II
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdb17244c44900aab0e2dd595f3f65821da975d0efb4629315f5af9a3a0e78e24. Chain 2 (Bitcoin): anchored in block 953520 (2026-06-13T13:32:09Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/NLA508702303.
English Suite No. 3 in G minor, BWV 808 - Transcr. for two guitars A. Lagoya: 2. Allemande
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Brandenburg Concerto No. 2 in F Major, BWV 1047: II. Andante
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Suite in E for Lute, BWV 1006a/1000 - Arr. Harp: 3. Gavotte en rondeau
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x30e88ae89cdd92f362d829644ae1d2a8db557b5de680f598ba234b89112494ad. Chain 2 (Bitcoin): anchored in block 953520 (2026-06-13T13:32:09Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/NLA508702314.
Concerto For Violin, Oboe, And Strings In D Minor, BWV 1060 - Arr. For Panpipes From Reconstruction By Max Schneider (1875- 1967): 2. Adagio
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc326bcef604442a4086fe8caa9a48aa31e2fddf3b6d842ac9589cbe8a0489b8a. Chain 2 (Bitcoin): anchored in block 953520 (2026-06-13T13:32:09Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/NLA508700614.
Oboe d'amore Concerto in A Major, BWV 1055R: I. (Allegro moderato)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1397544d794e60ae351b49f87917428903618fcbd515885f86525954e2c3056b. Chain 2 (Bitcoin): anchored in block 953520 (2026-06-13T13:32:09Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/NLA508119407.
Bach, J.S.: Sonatas & Partitas for flute & harp
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xeec294fef5609e6f834bf2c517e698fa0e91593d48a547dc71803c0a74f64452. Chain 2 (Bitcoin): anchored in block 956302 (2026-07-02T03:30:09Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/NLA508702301.
Sonata for Flute or Violin No.4 in C, BWV 1033: 2. Allegro
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x99b0e2e0a078bddb0c5126da28c45de422bbc9517bd4d6d6315db7acc04e04ed. Chain 2 (Bitcoin): anchored in block 957118 (2026-07-08T03:20:19Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/NLA508702302.
Sonata for Flute or Violin No.4 in C, BWV 1033: 3. Adagio
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9b3d8d5f52a536f69cb18bad9318de31c4a8f1474465fb911e8aac177971b289. Chain 2 (Bitcoin): anchored in block 957020 (2026-07-07T09:18:01Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/NLA508702304.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdb17244c44900aab0e2dd595f3f65821da975d0efb4629315f5af9a3a0e78e24. Chain 2 (Bitcoin): anchored in block 956304 (2026-07-02T03:55:08Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/NLA508702303.
Sonata for Flute Solo in A minor, BWV 1013: 1. Allemande
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Sonata for Flute Solo in A minor, BWV 1013: 2. Corrente
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Sonata for Flute Solo in A minor, BWV 1013: 3. Sarabande
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Sonata for Flute Solo in A minor, BWV 1013: 4. Bourrée anglaise
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Sonata No.2 in E flat major, BWV 1031 - For Flute and Harp: 3. Allegro
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Suite in E for Lute, BWV 1006a/1000 - Arr. Harp: 1. Präludium
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Suite in E for Lute, BWV 1006a/1000 - Arr. Harp: 2. Loure
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Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x30e88ae89cdd92f362d829644ae1d2a8db557b5de680f598ba234b89112494ad. Chain 2 (Bitcoin): anchored in block 956304 (2026-07-02T03:55:08Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/NLA508702314.
Suite in E for Lute, BWV 1006a/1000 - Arr. Harp: 4. Menuet I
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Suite in E for Lute, BWV 1006a/1000 - Arr. Harp: 5. Menuet II - Menuet I (dc)
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Suite in E for Lute, BWV 1006a/1000 - Arr. Harp: 7. Gigue
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Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc57fa9be03354f64dd5e89c0292b34156020672ae8c87c130c0e559bdcc7280c. Chain 2 (Bitcoin): anchored in block 953520 (2026-06-13T13:32:09Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/NLA508702319.
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Sonata for Violin or Flute and Continuo, No.1 in G Minor BWV 1020 - arr. Flute, Harp, and Cello: 3. Allegro
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Piano Trio No. 1 in B-Flat Major, Op. 99, D. 898: I. Allegro moderato
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Piano Trio No. 1 in B-Flat Major, Op. 99, D. 898: II. Andante un poco mosso
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Piano Trio No. 2 in E-Flat Major, Op. 100, D. 929: II. Andante con moto
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Peer Gynt, Op. 23 (arr. D. Geringas and G. Goltermann for cello and piano): Act IV: Anitra's tans (Anitra's Dance)
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Braunfels: String Quintet, Op. 63 - Strauss: Metamorphosen, TrV 290
Hindemith: Drei Stücke, Op. 8 / Sonate, Op. 25.3 / Sonate, Op. 11.3 / Meditation aus 'Nobilissima Visione' (Werke für Cello und Klavier)
Schubert: String Quintet in C major - Overture in C minor
Geringas Plays Bach Plus (Cello Suites, BWV 1007-1012)
Beethoven: Complete Works for Cello and Piano
Geringas, David / Draugsvoll, Geir: Quasi Improvisata
Cello Sonata No. 2 in D Major, Op. 58, MWV Q32: II. Allegretto scherzando
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Laurusas, V.: Discorso Concitato / Madrigale Strumentale / Concerto Da Camera
Senderovas, A.: David's Song / Sonata for Cello and Percussion / Due Canti / Songs of Shulamith /
Geringas, David / Nemtsov, Jascha: Eli Zion - From St. Petersburg To Jerusalem
ベートーヴェン：チェロ・ソナタ 第3,4,5番
ベートーヴェン：チェロ・ソナタ 第1番､ 第2番
Gubaidulina: The Canticle of the Sun & Homage à Marina Tsvetayeva
Sumera: Symphony No. 6 / Cello Concerto / Musica Profana
Peter Tschaikowsky, Sofia Ansgatowna Gubaidulina
Weinberg / Weprik / Shostakovich: Piano Trios
Vasks, P.: Gramata Cellam / Partita / Episodi E Canto Perpetuo
Peter Iljitsch Tchaikovsky: The Seasons Op. 37a